American health care spends an enormous amount of time debating evidence. We argue about clinical guidelines, quality measures, utilization controls, and policy design. We invest heavily in building rules meant to ensure the “right care” is delivered consistently and safely. All of that matters. Variation in care is real. Unsafe or unnecessary care causes harm. Evidence saves lives.
But there is a hard truth we don’t grapple with enough: rules may create structure, but structure alone does not heal people. Guardrails do not produce outcomes. Humans do.
I spend my days working alongside teams who care for some of the most medically complex, socially vulnerable, system-fragmented individuals in the country. That vantage point brings a kind of clarity that policy writing alone cannot. It is one thing to publish a guideline. It is another to stand with someone after a hospitalization and make sure they actually survive long enough—and remain engaged long enough—to benefit from it. It is one thing to state that depression should be treated. It is another to sit with someone who has lived through trauma and convince them that care is worth trusting at all.
Evidence matters deeply. But evidence has to make it into people’s lives to matter.
Too often, quality is framed primarily as compliance: alignment with policy, adherence to rules, conformance with utilization criteria. But the real question is not whether the rules are well designed. The real question is whether people are healthier, safer, more stable, and more supported because of the systems we’ve built.
In that conversation, critical elements are often missing. Trust. Engagement. Lived experience. Cultural context. Behavioral health. The realities of poverty, housing instability, trauma, and distrust of institutions. These are not edge cases in Medicaid or safety-net care—they are the core conditions under which care must be delivered.
The gap between evidence and outcomes is rarely caused by ignorance of guidelines. It is caused by fragmentation, instability, and systems that assume people can comply with care plans that don’t reflect the realities of their lives. Payer processes, however well-intentioned, often delay care, exhaust clinicians, and disproportionately burden the people who already struggle most to navigate the system.
The work of care delivery looks very different when viewed up close. It happens in living rooms, on front porches, in shelters, and in moments of crisis, relapse, recovery, fear, and rebuilding. It requires clinical leadership embedded in operations, not hovering above them. It requires structured workflows, accountable teams, strong interdisciplinary collaboration, real-time data, and serious quality rigor—not as rhetoric, but as daily practice.
It requires behavioral health integration as a necessity, not an enhancement. It requires treating pediatric and family complexity with intentionality, not as an afterthought. It requires implementation science in real time—learning from what works, identifying “bright spots,” coaching teams, and adjusting rapidly when reality diverges from design.
And above all, it requires relationships. I believe—clinically and operationally—that trust is a clinical intervention. Relationship is a treatment modality. Stability is an outcome. Proximity matters. Many of the people served by safety-net systems have been failed repeatedly by institutions that promised help and delivered bureaucracy instead. They do not adhere to care because a guideline exists. They adhere because someone shows up consistently, empathetically, and competently enough to make engagement feel safe and worthwhile.
No prior authorization policy can accomplish that. Only people can.
This is not an argument against evidence, structure, or accountability. We need all of them. But we need to be honest about their limits. Policy alone does not change care. Evidence alone does not produce outcomes. Without operational capability, cultural intelligence, behavioral health integration, equity, and relational trust, we end up with beautifully written frameworks that never reach the people they promise to serve.
The future of health care—especially for Medicaid and other high-need populations—will be decided less by what we write and more by what we can reliably deliver. It will be shaped by whether we are willing to invest in the hard, relational, clinically rigorous work of meeting people where they are and staying with them long enough to make care possible.
When evidence is paired with humanity, extraordinary things happen. Chronic disease stabilizes. Emergency department visits decline. Transitions become safer. Mental health improves. Families feel supported. People begin to experience care not as something done to them, but with them.
That is where the real story of evidence-based care is being written—not in policy alone, but in practice, partnership, and trust.
Carisha Cabasa, DNP, RN
Carisha Cabasa, DNP, RN is the Vice President of Clinical Care at MedZed. She brings over 25 years of experience in healthcare with a proven track record in cultivating high-performing teams, optimizing operational excellence, and driving strategic growth to achieve exceptional outcomes. Before joining MedZed, she held leadership roles at Myia Health, TransformativeMed, Life Image, Healthways, and Cerner, and is the founder of VanzHealth.
Carisha holds a Master of Science in Nursing from the University of California, San Francisco, and a Doctor of Nursing Practice from Creighton University. She also serves as adjunct faculty at Creighton University's College of Nursing, where she teaches in the nursing administration and leadership track.
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